GCN Circular 4146
Subject
GRB051021b: Magellan IR Imaging
Event
Date
2005-10-23T05:45:47Z (20 years ago)
From
Josh Bloom at UC Berkeley <jbloom@astron.berkeley.edu>
D. L. Kaplan (MIT), H-W. Chen (Chicago), J. S. Bloom (UCB), J. X.
Prochaska (UCO LIck) report on behalf of a large collaboration:
"We obtained deep K-band imaging of the field of GRB 051021b (GCN
4135) with PANIC on the Magellan Baade Telescope starting at 08:42:56
October 22, 2005 UTC. We identify 4 sources within the XRT error
circle (GCN 4128):
08:24:11.803 -45:32:30.79 J2000
08:24:11.598 -45:32:31.93 J2000
08:24:11.622 -45:32:33.70 J2000
08:24:11.724 -45:32:34.20 J2000
The 1 sigma uncertainty relative to 2MASS is 300 mas. As all of
these sources are significantly fainter than the 2MASS detection
limit we cannot identify an obvious afterglow candidate."
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